I want to run app with ionic view app in my real device I tried in the first time
ionic link after
ionic upload when i run the last command i get this error

can anyone help me please ? and thanks in advance
You can run your Ionic project on a real device with the following command, for example for an Android device:
ionic cordova run android --device Your Android device must be connected to your computer and you will have to allow debugging on your Android device.
ionic link is actually used to connect your local app to Ionic'online service.
To check that your device is recognized and Ionic will be able to transfer the apk, use the following command
adb devices You should see your Android device listed.
ionic cordova run android --device